Portable Oxygen Concentrator (POC) Versus Standard of Care in Long-COVID: Randomized Crossover Exploratory Pilot Study.

Not Applicable

Completed

• Conditions: COVID-19
• Interventions: Device: Inogen One® G4

• Registration Number: NCT05212831
• Lead Sponsor: Inogen Inc.

Brief Summary

A prospective, open label, randomized, crossover, pilot, exploratory study to describe the effect of the Inogen One® G4 POC on brain hypoxia, peripheral oxygen saturation and cognitive function in adults with longterm- COVID.

Detailed Description

After a 2-week screening/baseline evaluation, participants will be randomized in a 1:1 allocation ratio to one of the following 2 sequences: 1) portable oxygen concentrator (POC) for a first 2-week period followed by standard of care (SOC) for a second 2-week period or 2) SOC for a first 2-week period followed by POC for a second 2-week period. There will be a washout period of one week between the two treatment periods. A total of 10 subjects will be enrolled per sequence.

Study Timeline

• Study First Submitted: 2022-01-21
• Study First Submitted QC: 2022-01-25
• Study First Posted: 2022-01-28
• Study Start: 2022-06-08
• Primary Completion: 2023-03-02
• Study Completion: 2023-03-02
• Status Verified: 2023-07
• Last Update Submitted: 2023-07-13
• Last Update Posted: 2023-07-14

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 21

Inclusion Criteria

1. Ability and willingness to give written informed consent prior to any study-specific screening procedures and to comply with the requirements of the study
2. Male or female, aged ≥ 18 years of age
3. Diagnosed with Long-COVID
4. Patient self-reported concerns regarding cognitive functioning or recent diagnosis of COVID-19 related cognitive impairment
5. MoCA test scores ranging from 13 to 25/30 at screening
6. Oxygen saturation SpO2 ≤ 93 % on fingertip pulse oximetry and/or < 60% on brain NIRS, at rest or during effort and/ or 10% relative decrease in brain saturation during exercise as compared to baseline value at screening
7. Ability to perform exercise treadmill test at screening
8. Tolerability of pulsed oxygen (O2) therapy delivered by POC at screening
9. Willingness and ability to wear POC.

Exclusion Criteria

1. Contraindication to the use of POC including allergy to cannula material
2. Pregnancy or planning to become pregnant during the study
3. Non-COVID-related cause for cognitive impairment (such as Parkinson's disease, multiple sclerosis, Alzheimer's disease, stroke, brain tumor, or dementia)
4. Subjects with respiratory infection at screening or randomization and/or acute bronchitis requiring antibiotics at the time of randomization or expected during the treatment
5. Participation in other interventional clinical trial within 30 days of randomization or expect to participate in any other investigational clinical trial during the conduct of this trial
6. Subjects who should be excluded in the opinion of the investigator

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Portable Oxygen Concentrator	Inogen One® G4	Inogen One® G4 Portable Oxygen Concentrator (POC) is used on a prescriptive basis by subjects requiring supplemental oxygen. It supplies a high concentration of oxygen and is used with a nasal cannula which channels oxygen from the concentrator to the subject. Inogen One® G4 is designed to provide a flow of high purity oxygen. Inogen One® G4 may be used in home, institution, vehicle and various mobile environments.

Primary Outcome Measures

Name	Time	Method
COVID-19 related brain hypoxia and peripheral oxygen saturation	14+/-3 days	To describe the effect of the Inogen One® G4 POC on COVID-19 related brain hypoxia and peripheral oxygen saturation
VO2max during cardiopulmonary exercise test	14+/-3 days	To describe the effect of the Inogen One® G4 POC on VO2max during cardiopulmonary exercise test
MoCA test	14+/-3 days	To describe the effect of the Inogen One® G4 POC on Cognitive performance using the MoCA test
Other neuropsychological tests	14+/-3 days	To describe the effect of the Inogen One® G4 POC on Cognitive health assessments using other neuropsychological tests

Secondary Outcome Measures

Name	Time	Method
Pulmonary function	14+/-3 days	To describe the effect of the Inogen One® G4 POC on the post COVID-19 pulmonary function
Anxiety, mood, and subjective cognitive impairment	14+/-3 days	To describe the effect of the Inogen One® G4 POC on anxiety, mood, and subjective cognitive impairment
Functional status	14+/-3 days	To describe the effect of the Inogen One® G4 POC on post-COVID functional status
Safety outcomes	14+/-3 days	To determine the safety outcomes of the Inogen One® G4 POC in this subject population

Trial Locations

Locations (2)

Centre ÉPIC de l'Institut de cardiologie de Montréal; 🇨🇦 Montréal, Quebec, Canada

Montreal Heart Institute; 🇨🇦 Montréal, Quebec, Canada